Dish-washing machine.



G. yFROTPMTGHAMc. DISH WASHING' MACHINE. rAPPLI-0AT'I0N H LED min', 1912'. '1,04264, Patented 0615.29, 1912.

3 sEBBTs-SHnET'l.

AT'TORNEY GLIPR0THINGHAMf DISH WASHING MACHINE,

i A `APPLIOAI'ION vFILED IB-B. 19, I1912. 'v 1,042,6'e l 12mm-,ed ont. 29, 1912.

www

MMM v I A -x a? I' fr? x. 75': I'

Z9 I "17159. l I gi, jff

www

ATTORNEYl c. P. PROIIIING'HAM'. DISH WASHING MACHINE. APPLICATION FILED 513.19', 1912.

41,0 42,66 1 Patented m29,1912.1A

'a SHEETS-SHEET a.'V

ATTORNEY DISH-WASHING MACHINE.

remesa.

Specification of Letters Patent.

raeeneeaoeeeaieig,

Applicationlled February 19, 1912. Serial No."678,557.

`washing .dishes and the like; and more particularly to a machine employing a suitable tankcontaining the Washing water and wherein the dishes or the like are Washed by immersing thesame bymean's of a. suit-' able rotary carrier. The carrier is designed to bring the dish supporting means out of the water during a part of their' rotation, whereby the dishes may be conveniently fed,

rinsed and finally delivered troni the ma-V chine.

One of the objects of the invention is to 'provide a compact tank and to provide means therein whereby the washing water is forcibly directed toward the face of the dishes l to be washed, the mechanism for driving the same being suitablyprotected Jfrom contact with the water; also, to provide means of this character which shall reduce the necessary driving power to a minimum.

A further object of the invention is to so arrange the water directing means that there will be a tendency to also wash the back of the dish as wellv as the front of the same. y

The nature of the invention will best beunderstood when described in connection with he 'accompanying drawings; in which# Figure 1 is a front elevation of thexim-l proved dish-washing machine, a. portion of the rontof the tank being broken away. Fig. 2 is a horizontal section onth'e line 2 9., Fig. 1. Fig. v3 is an end'elevation. Fig. 4 is a transverse vertical section. Fig. 5 is an enlarged sectional view of the dish retaining means.

Similar characters of reference designate lcorresponding parts throughout the several views.

. p, Referring now to the drawings, l10 deSig-KK zia-tes the tank which is mounted on a suitablebase 11 and is adapted to v'contain the washing water .fed thereto through suitable .inlets 12 and removed therefrom-through a inwardly beyond valve 13', is provided to maintain the waterflevel as Well asl to remove the grease 'and other material ilo-ating upon the surface ofthe water. l .4

The tank or casing 10 is provided 4with an projecting portion -15 Within which is contained a portion of the drivingY 'mechanisnn as will hereinafter be set forth.

This mechanism consists of a suitable mov tor 16, preferably an electric motor. as shown, which drives through thepinion 17v and spur gear 18, the main shaft 1,9. This shaft carries at its end and within the in- `Wardly projecting portion 15, a spiral pin- 7 0 ion 20 engaging Wo spiral gears 20', which `drive shafts 21 passing through the `inwardly projecting casing 15 .into the tank l10. Suiiiciently elongated bearings 22, eX tending from the casingl, are provided for these shafts for the purpose of preventing the water of the tank 10 from leaking into the casing 15; and these'shafts 21 carry at their ends, and within'the water of the tank,

suitable propellers 23. The ina-in shaft 19 'go` carries, also, a pinion 24 engaging a spur gear 25 on 'a clutch shaft 26 upon which are the two halves of a 'clutchv27, one half of the clutch being splined upon the said shift 26.

A pinion Q9 at one end of shaft 9.6 engages 85 a spurv gear 30 on a driving shaft 31, the

said shaft 31 projecting through portion 15 vinto the tank 10 andthrough a lsuitable bearing 32. The' driving shaft 31 carries a dish supporting member which rotates therewith,

and which consists of the wheel 40ja`nd a susperiphery. These rods carry', also, Jalle dish retaining `members or baskets, one lof which is shown in detail in Fig. 5.

consist of a longitudinal frame -or dish saddle 43 having end lugs 44 providedv with 1.00

These baskets isuitable perforations 45 to-'receive the rods 42the said `frames being strungwith Wires 46, or other suitable material, to provide a support for the dish. A top or cover frame @ne side of the frame -or-cover 47 isv pro- 1107,

vided with a cam roller 50, and a supplement'ary cam roller 51,'as well as lvvlth an .tainingl ring 41, the latter beingmounted ,about the projecting casing 15, and connected with the `wheel 40 bymeans of suitable rods 42 which'are spaced equidistantlvabout the' 95 47 is hinged' to lugs 48 projecting npwardly -105 or cam surface upper cam surface 52. The frame 43 is thus permanently fixed to the wheel fr() and the sustaining ring il, and forms, therefore, a polygonal 'supporting surface for the dishes. rThe frameset?, adapted to coperate therewith, are arranged to be raised during certain periods of the rotation of wheel lO-ll to permit of. theinsertion of a'dish'; whereupon, on further rotation of said wheel, the cover closes and firmly holds the dish within 'the respective basket and during its progress through the water of the washing tank.

v The opening and closing of the frame Lt" is effected respectively by an opening cam 60 secured to the tank 10 and adapted to engage the cam roller 50, and by means of a closing cam' 61 forming partV of the tank 10 and likewise adapted to engage the said roller` 50. n additional closing means is provi-ded in the roller 63 carried by the tank, said roller'b'eing adapted to engage the to'p of the basket, to-hold the dish, before the vactual 'closing cam 6 1' comes into effect,

whereby sudden closing and consequent'.

shock is obviated, lthe roller 63 effecting the gradual closing of theA basket as it rides upon the inclined cam surface 52. The sup# plementary roller 5l then follows under f 'cam 61 and holds the top or vcover in closed position atits eXtreme outer end, thus re ducing iii" c-Lion on rollers 'O and "aceommodating, also, any'wear. 'As thedishes thus held by the baskets with tlieir upper surfaces toward the'axis of rotation, pass through the water .in the tank 11),. their :upper surfaces meet the streams.'Oftwaterisdirected toward the same by tlrepropellers 23. These propellers aire arranged, furthermore, such that the streams thus directed thereby toward the dishesl shall not strike the' same perfectly normal but .at/af slight inclination thereto, whereby greater pressure exists at one side anda swirl is produced which'causes'the Water to pass about the ends of the dishes and through, the baskets to wash also thev back of the dishes. The propeller-s being located belowl the water line and directing the streams of wash water `toward the bot-- tom of the'tank, do not stir up the entire `volume of water to such a degree as to cause the development of considerable vapor, which is the case in' certain types of washing machines such, for example, as those employing paddles. The 'j )r'opellers more lover, require much less power to drive, than oth'er forms of washing` means, for example, fthe paddlesmentioned.

.is the baskets leave the water and are opened by the cam 60, the dishes slide from the said baskets` and are preferably receivedl by a take-oilframe (S5 which is operated vfrom a cam .66, through suitable intermediate mechanism, and caused to follow the motion of the baskets, whereby This insures the closingI Loa-acca the dishesare removed without shock. The cam then raises the takeoff frame to such an extent that the succeeding basket with its dish may.' pass, v.'-her nipon the take-off frame drops to receivethe nent dish. `From said frame the dishes are delivered to a table 6T or any suitable receiring means. The cam (35 is driven from the clutch shaft 2G vthrough a sprocket' 68. To startthe machine clutch 2T is thrown in by means of a lever G9 attached to the tank 10 and connected through intermediate mechanism with' said clutch.

I claim y I l. ln a dish washing machine: a suitable .tank to contain water; a carrier, and means to move the same through said tank; "suit-l able dish retaining means supported by saidy carrier to brineV a dish into. a predetermined washing position with its flat side presented for washing; means to periodically open said dish retaining means, and means to close thesame for a predetermined yperiod of the movement of said carrier; and a screwpropeller within said tank and between which and the tank the said carrier is adapt- I ed to pass to present the dish to the stream of waterdirected theretoby the said pro-- peller.-

Q. In a dish washing machinezia suitable tank to contain water; avrot-atable carrier mounted tol rotate in said tank,.and means to rotate the same; suitable dish retainingol` means supported by said carrier; means to periodically open vthe said dish retaining means, and means to close the same for a predetermined period of the-rotation of said carrier; two propellers with divergingaxes of rotation, said prcpellers being (li-- rectedI toward the portion of said carrierV within the tank to direct the water within said tank toward the' dishes brought int-ol position by the rotating carrier; and means` to drive said propellers.

ln a dish fashing machine: a suitable tank'to contain water; a casing projecting into vsaid tank, and suitable driving vmechanism therein; a carrier, andmeans to move the-same through said tank; suitable-dish retaining means supported by said carrier to bring a dish into a predetermined wash-1 ing position with its flat. side presented for washing; means to periodically open said dish retaining means, and means t'o'close the'same for a predetermined period of the movement of said carrier; a driving shaftextendin'g through said inwardly project-ing casing into said tank; and a screw propeller mounted upon said' driving shaft and between which and Ithe tank the said carrieris adapted to. pass to present the dish to the 'stream of lv'water directed thereto by thesaid propeller.

tank teianntain water; a casing projecting los iso

.. -nis1n therein; a rotatable carrier mounted to rotate in said tank, and about. the said inwardly projecting' casing, and means to rotate the saine; suitable dish retaining means supported by said carrier; means to periodically open said dish retaining means, and means to close the same for a predetermined period of the rotation of said car-- rier; driving shafts extending through said i'iiifai-dlyprojecting casing; and pro-pellers mounted upon said driving shafts and Within said tank to direct thewater within said,

ysaid tank and suitable driving mechanism therein; a rotatable carrier mounted to ro- 20 tate in said tank and about said inwardly saidinwardly projecting casing; and

projecting casing, and means to rotate thex same; suitable dish retaining means' supported by said carrier; means to periodically open Said dish retaining means, and means to close the'same for a predetermined period of the rotation of said carrier; tivo diverging driving shafts extendingthrough propellers Vmounted .upon said driving, shafts andI Within said tank to direct the Water Within said tank toward the dishes brought into position -byfthe rotating carrier.

Signed 'at New York, in the county of New York,.and State of New York, this 16th day of February A. D. 1912.

, oHARLEs ir. FROTHINGHAM.

Vitnesses: l

W. Ab HooFNAGLE,

FREDK. F. SCHUETZ. 

